A firework is shot upward at a rate of 525ft/s. Use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the firework rocket is at a height of 800ft. Round your answer(s) to the nearest tenth of a second.

And explain how you got it so i can understand future problems : 3

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?